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What good are models?
University of California, Berkeley, United States.
Mälardalen University, School of Innovation, Design and Engineering, Embedded Systems. Reykjavik University, Reykjavik, Iceland.
2018 (English)In: Lecture Notes in Computer Science, vol. 11222, Springer Verlag , 2018, p. 3-31Conference paper, Published paper (Refereed)
Abstract [en]

Models are central to engineering. They are used for analysis, synthesis, and communication between humans. A given artifact or process may have multiple models with different purposes, modeling different aspects, or modeling at varying levels of abstraction. In this paper, we give a general overview of how models are used, with the goal of making the concepts clearer for different communities. We focus on the domain of track-based flow management of automated systems, and identify two different modeling styles, Eulerian and Lagrangian. Eulerian models focus on regions of space, whereas Lagrangian models focus on entities moving through space. We discuss how the features of the system, like having centralized or decentralized control or the ability to install fixed infrastructure, influence the choice between these styles. Although the choice between modeling styles is rarely made consciously, it affects modeling efficiency, and one style may be far better suited for certain modeling problems than another. For problems with a more global nature concerning the physical space, an Eulerian model is likely to be a better match. For problems that concern the moving objects specifically, where the identity of the individual objects is important, a Lagrangian view is the one to choose. In many cases, combining the two styles is the most effective approach. We illustrate the two styles using an example of an automated quarry. 

Place, publisher, year, edition, pages
Springer Verlag , 2018. p. 3-31
Series
Lecture Notes in Computer Science, ISSN 0302-9743 ; 11222 LNCS
National Category
Computer Systems
Identifiers
URN: urn:nbn:se:mdh:diva-41264DOI: 10.1007/978-3-030-02146-7_1Scopus ID: 2-s2.0-85055087069ISBN: 9783030021450 (print)OAI: oai:DiVA.org:mdh-41264DiVA, id: diva2:1260120
Conference
15th International Conference on Formal Aspects of Component Software, FACS 2018; Pohang; South Korea; 10 October 2018 through 12 October 2018
Available from: 2018-11-01 Created: 2018-11-01 Last updated: 2018-11-01Bibliographically approved

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Sirjani, Marjan

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CiteExportLink to record
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Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
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Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf